EP2344929B1 - Image forming device - Google Patents

Image forming device Download PDF

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Publication number
EP2344929B1
EP2344929B1 EP09819000.2A EP09819000A EP2344929B1 EP 2344929 B1 EP2344929 B1 EP 2344929B1 EP 09819000 A EP09819000 A EP 09819000A EP 2344929 B1 EP2344929 B1 EP 2344929B1
Authority
EP
European Patent Office
Prior art keywords
print
printout
image data
toner
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09819000.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2344929A4 (en
EP2344929A1 (en
Inventor
Osamu Iinuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP2344929A1 publication Critical patent/EP2344929A1/en
Publication of EP2344929A4 publication Critical patent/EP2344929A4/en
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Publication of EP2344929B1 publication Critical patent/EP2344929B1/en
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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6582—Special processing for irreversibly adding or changing the sheet copy material characteristics or its appearance, e.g. stamping, annotation printing, punching
    • G03G15/6585—Special processing for irreversibly adding or changing the sheet copy material characteristics or its appearance, e.g. stamping, annotation printing, punching by using non-standard toners, e.g. transparent toner, gloss adding devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5016—User-machine interface; Display panels; Control console
    • G03G15/502—User-machine interface; Display panels; Control console relating to the structure of the control menu, e.g. pop-up menus, help screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5075—Remote control machines, e.g. by a host
    • G03G15/5087—Remote control machines, e.g. by a host for receiving image data
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00025—Machine control, e.g. regulating different parts of the machine
    • G03G2215/00109—Remote control of apparatus, e.g. by a host
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00789—Adding properties or qualities to the copy medium
    • G03G2215/00805—Gloss adding or lowering device

Definitions

  • the present invention relates to an image forming device which can automatically perform many complex processes generated for realizing selection of a visual effect at the time of outputting a print using transparent toner.
  • An example of the specific toner includes transparent toner which can absorb convexity and concavity on a surface of a printout document to realize high glossiness, light toner which can restrict a rough surface of a highlighted portion, and the like.
  • Use of the specific toner allows a new added value different from a value of the usual digital printing, making it possible to further expand the world of the digital printing. From the above-mentioned background, a color complex machine (hereinafter, referred to as MFP) using the specific toner has been brought to the market.
  • MFP color complex machine
  • Patent Document 1 proposes a method in which a plain paper as a non-coated paper is used in a case where a coated paper is not mounted at the time of attempting a printing process onto the coated paper, but transparent toner is used on a portion where the surface is white and is used as an application for enhancing glossiness.
  • Patent Document 2 proposes a method in which transparent ink is used on a location in a photo in which ink is not used to hold uniformity of glossiness in the photo.
  • the use purpose of the transparent toner is to achieve a gloss effect only.
  • the transparent toner is not one to be used only for creating the gloss effect. It is also possible to achieve a matte effect depending on a paper or a printout method to be used.
  • setting setting the kind of a paper or a printout method
  • the print effect gloss effect or matte effect
  • US 2006/188301A1 discloses that a clear toner overcoat is applied to a fused color toner image using an inverse mask, and enhanced glossing of the image is provided by a belt glosser to improve color gamut.
  • US 2005/169680A1 discloses producing an image having a controlled gloss, differential gloss, and image relief.
  • JP H05 265287A is concerned with providing a color image forming method of enabling the formation of an glossy copy image only in the photographic region or the whole face of a document regardless of the quality of transfer material.
  • JP 2007 127790A discloses that when adding information using the transparent toner, additional image data is reversed between negative and positive, whereby glossiness is given and additional information is given simultaneously.
  • JP 2008 129547A discloses that the quantity of transparent toner to be used is controlled according to a print mode.
  • US 2005/141942A1 discloses a printer comprising a colorless clear ink printing means which prints a print medium using a colorless clear ink, a print setting receiving means which receives settings relating to printing, and an area determination means which determines an area in which the colorless clear ink is used, based on at least either image data or said settings relating to printing.
  • JP 2008 139589A is concerned with providing an image forming apparatus capable of easily forming a uniform transparent image onto a color toner image without altering the fixing conditions of a fixing means.
  • JP 2007 052175A discloses an image forming system configured so that input image data and glossiness designating data for showing the glossiness of the image of the input image data are input to create output image data, based on the input image data and to select an image forming process, based on the glossiness designating data, and the image forming process is performed, based on a glossiness designating parameter corresponding to the selected image forming process, to form the output image having the glossiness corresponding to the glossiness designating data on an image forming medium.
  • JP 2007 047403A is concerned with selecting a suitable output recording paper and printing with a suitable glossiness when copying an input document that has a highly glossy image.
  • JP 2006 171306A discloses a control means for controlling fixing condition so that at least either the glossiness after the fixation of the image with respect to the amount of attached toner, or the glossiness of the image forming surface of a sheet is made substantially constant.
  • the present invention provides an image forming device as specified in claims 1 to 7, an image forming method as specified in claims 8 to 14, a computer readable recording medium according to claim 15 and a computer program according to claim 16. According to the following explanation, in the present invention, a user can select the print effect more easily as compared to the conventional technology. Further, the present invention can automatically set a process performed in an image forming device required for realizing the print effect.
  • transparent toner is used as the specific toner, but besides, there may be used a specific printing agent having a feature of adding a transparent image, such as transparent ink which can produce the similar effect.
  • Fig. 1 is a block diagram showing an image forming device according to the present invention.
  • Multi function complex machines (hereinafter, referred to as MFP) 101 and 103 as printing devices and a local PC 102 are connected to LAN 104 built in an office 10.
  • MFP 101 and 103 performs an image process to an input image read from an original image. Further, MFP which has read the original image prints out the result of the image process.
  • MFP 103 may print out the result of the image process.
  • a page description language (hereinafter, referred to as PDL) transmitted from the local PC 102 is interpreted, which may be printed out by MFP 101 or 103.
  • MFP 105 is connected to a different LAN.
  • Fig. 2 is a diagram showing MFP.
  • an image scanner (image reading unit) 201 reads an original image and performs a digital signal process.
  • a printer unit 202 prints out an image corresponding to the original image read by the image scanner 201 on a paper in full color.
  • the image scanner 201 includes a mirror surface pressure plate 200 and an original 204 on an original base glass (hereinafter, referred to as platen) 203 is radiated by a lamp 205, which is introduced to mirrors 206, 207, and 208.
  • the radiated light builds up a picture on a solid-state image sensor (hereinafter, referred to as CCD) 210 with three lines by a lens 209, and three image signals of red (R), green (G) and blue (B) as full color information are transmitted to a data processing device 211.
  • CCD solid-state image sensor
  • the lamp 205 mechanically moves in a direction vertical to an electrical scan direction (main scan) of a line sensor at a speed of v and the mirrors 207 and 208 mechanically moves in the same way at a speed of 1/2 v to scan (sub scan) an entire surface of the original.
  • the original 204 is read in both the main scan and the sub scan, for example, with resolution of 600 dpi (dots/inch).
  • the read image signals are accumulated in data accumulating means (not shown) inside the data processing device 211 in a unit of one page of the original.
  • the image signals accumulated therein are electrically processed in a pixel unit to be decomposed into respective components of magenta (M), cyan (C), yellow (Y) and black (Bk), which will be transmitted to the printer unit 202.
  • M magenta
  • C cyan
  • Y yellow
  • Bk black
  • transparent image data (CL) are generated in a pixel unit, which are likewise transmitted to the printer unit 202.
  • the transmitted image signals of M, C, Y, Bk and CL are transmitted to a laser driver 212.
  • the laser driver 212 modulates a semiconductor l aser 213 in accordance with the transmitted image signal.
  • the laser r ay scans through a polygon mirror 214, an f- ⁇ lens 215 and a mirror 21 6 on a photosensitive drum 217.
  • both the main scan and the sub scan in the same way as the reading are written in with resolution of 600 dpi (dots/inch).
  • a rotational developing device 218 includes a magenta developing unit 219, a cyan developing unit 220, a yellow developing unit 221, a black developing unit 222 and a clear (transparent) developing unit 223.
  • the five developing units 219 to 223 alternately contact the photosensitive drum 217 to develop an electrostatic development formed on the photosensitive drum 217 by toner of each color.
  • a transcriptional drum 224 winds a paper fed from a paper cassette 225 or a paper cassette 226 around the transcriptional drum 224 to transcribe an image developed on the photosensitive drum on the paper.
  • the paper may be once more subject to the above process without being discharged to be once more printed out, and then may be discharged.
  • An example of the method of once more printing out without being discharged includes a method where in a reverse path used at double-sided printing out, a paper is once more set to a paper feeding step without being reversed.
  • Fig. 18 is a diagram showing the configuration of the local PC 102.
  • Application data Data produced by an application 1801 are explained as an example (hereinafter, referred to as application data).
  • a printer driver UI (user interface) unit 1802 instructed transmits the instruction to a printer driver 1803.
  • the printer driver 1803 converts the application data into PDL data.
  • PDL language used in PDL data indicates, for example, LIPS or PS.
  • a transmitting unit 1804 transmits the produced PDL data to MFP 101.
  • Fig. 9 is a diagram showing the configuration of the data processing device 211 mounted in MFP and the data processing device 211 is configured of a PDL processing unit 901, a UI unit 902, a printout condition determining unit 903, an image processing unit 904, a memory device 905, a printout controlling unit 906 and a transparent form image processing unit 907.
  • the data processing device and respective units included therein are operated by performing programs stored in the memory device 905 with CPU (not shown).
  • Fig. 10 is a diagram showing the configuration of the PDL processing unit 901 in Fig. 9 , which is configured of a receiving unit 1001, a PDL analyzing unit 1002, an intermediate language developing unit 1003, a print effect information producing unit 1004, a compression processing unit 1005 and a transmitting unit 1006.
  • Fig. 11 is a diagram showing the configuration of the transparent form image processing unit 907 in Fig. 9 , which is configured of an decoding unit 1101, a gray scale processing unit 1102, a binarization processing unit 1103 and a transmitting unit 1104.
  • Fig. 12 is a diagram showing the configuration of the image processing unit 904 in Fig. 9 , which is configured of an decoding unit 1201, a transparent form receiving unit 1202, a color processing unit 1203, a transparent toner processing unit 1204, an image forming processing unit 1205 and a transmitting unit 1206.
  • Fig. 3 is a diagram showing a flow chart in regard to an image process and a one-path print-out process performed by the data processing device 211.
  • the procedure shown in this flow chart is stored in the memory device 905 in the data processing device 211 and is carried out by CPU (not shown).
  • R, G and B signals from the local PC 102 or MFP 101 and 103 are converted into CMYBk signals at the color processing unit 1203 by the image processing unit 904.
  • the conversion into the CMYBk signal is carried out by a matrix calculation as shown in Expression (1).
  • C M Y Bk A 1 A 2 A 3 A 4 A 5 A 6 A 7 A 8 A 9 A 10 A 11 A 12 R G B
  • the local PC 102 may transmit the CMYBk signals, but in this case, the color processing unit 1203 performs the concentration adjustment or the like at step S301.
  • the color processing unit 1203 calculates transparent toner components from the CMYBk signals at the transparent toner processing unit 1204.
  • a total toner amount of CMYBk is found for each pixel.
  • the total toner amount is a toner amount transcribed on a paper for each pixel by a sum of signal quantities found by combining four colors of CMYBk.
  • the total toner amount is usually expressed as a percentage value of which the single color maximum value is 100%. In a case where the image signal is expressed in the integer number of 8 bits, since the single color maximum value is 255, the total toner amount is determined by multiplying an additional value of CMYBk by 100/255.
  • a general upper limit value of the total toner amount is usually in the order of 200 to 280% and is determined by an image producing process, but in the present embodiment, a total amount after further forming a transparent toner layer is required to be equal to or less than the upper limit value.
  • the image processing unit 904 performs a gamma correction process set by MFP 101 for each color at the image forming processing unit 1205.
  • the image forming processing unit 1205 performs an image forming process for each color.
  • the image forming processing includes a screen process or an error diffusion process.
  • MFP 101 uses the toner of CMYBk and CL to print out an image.
  • Fig. 4 shows the outline diagram.
  • a one-path print-out process means a printout method in which the transparent toner amount is calculated from the total toner amount of the four colors of cyan, magenta, yellow and black, and the printing and fixing are performed one time, thus using a regular printout (first printout) function completing the printout by one process.
  • Fig. 5 is a flow chart in regard to an image process and a two-path print-out process performed by the data processing device 211.
  • the procedure shown in this flow chart is stored in the memory device 905 in the data processing device 211 and is performed by CPU (not shown).
  • the image processing unit 904 determines whether input image signals from the local PC 102 or the MFP 101 and 103 are R, G, and B signals or CMYBk signals at the color processing unit 1203. In a case where as a result of the determination, the input image signal is the CMYBk signal, at step S502 the image processing unit 904 converts the CMYBk signal into the R, G and B signal at the color processing unit 1203. The method of the conversion is carried out by the matrix calculation as shown in Expression (4).
  • R G B B 1 B 2 B 3 B 4 B 5 B 6 B 7 B 8 B 9 B 10 B 11 B 12 C M Y Bk
  • the color processing unit 1203 replaces the R, G and B signals for one signal of a single color.
  • the method of the conversion is carried out using a calculating expression or the like and the calculating expression is not uniform.
  • the CMYBk signals are converted into the R, G and B signals, which then are replaced by the one signal of the single color, but it is possible to directly replace the CMYBk signals for the one signal of the single color using the well known method.
  • the image processing unit 904 performs a gamma correction process for transparent toner set by the MFP 101 to the signal converted into one signal at the image forming processing unit 1205. Further, at step S505 the image forming processing unit 1205 performs the image forming process.
  • MFP 101 prints out an image using toner of CL.
  • the schematic diagram is shown in Fig. 6 .
  • MFP 101 first prints cyan 601, magenta 602, yellow 603 and black 604 in that order and performs the printout.
  • a printout document by the CMYBk is set to a paper feeding step of MFP 101.
  • a transparency 605 is printed and printed out on the set printout document.
  • the two-path print-out process is a printout method using a two-path print-out (second printout) function in which four colors of cyan, magenta, yellow and black (C, M, Y and Bk) are fixed once, and thereafter, transparent toner is printed thereon, thus completing the printout with two processes.
  • a feature of the two-path print-out process by a case compared with the one-path print-out process will be explained.
  • Using the two-path print-out process a total time required for the printout increases without mentioning.
  • a print amount of the transparent toner is a difference amount found by subtracting the CMYBk amount from the upper limit value of the total toner amount
  • an amount for printing the transparent toner may be zero according to the calculation. For example, this is a case where a total toner amount of CMYBk exceeds a total toner amount allowed by a printout device. In this case, even if a user intends to print the transparent toner, a visual effect by the transparent toner can not be obtained.
  • the transparent toner is printed and fixed.
  • the transparent toner can be printed in an adhesion amount of 100% as the maximum value of a single color.
  • the transparent toner of the instructed adhesion amount can be printed to restrict reduction of the visual effect.
  • Fig. 30 is a diagram showing a surface of transparent toner at the time of usually printing out.
  • Fig. 16 is a diagram showing a surface of transparent toner at a two-path print-out process.
  • the print effect depends on a difference in surface properties between a paper and transparent toner and a difference in surface properties between transparent toner and toner already printed.
  • a paper there is a difference in surface between a coated paper 3001 and a non-coated paper 3002 as a plain paper in Fig. 30 . Since a surface 3003 of the coated paper 3001 is coated, it has no concavity and convexity. On the other hand, a surface 3004 of the non-coated paper 3002 has concavity and convexity due to an influence of paper fabric.
  • both the surfaces of the paper and the transparent toner have concavity and convexity.
  • the concavity and convexity on the surface of the non-coated paper 3002 are larger that those on the surface 3006 of the transparent toner, a gloss effect occurs on the printed location (that is, the surface 3006 of the transparent toner).
  • Fig. 7 shows an example of transparent form image data.
  • Fig. 8 shows an example of an image shown on the local PC screen.
  • Transparent form image data 701 are stored in binary image data, and a location 702 of a logical value "1" shows a position subject to a visual effect generated at the time of using the transparent toner. Bottoms 801 and 802 instruct to a print effect information producing unit 1004 of the PDL processing unit 901 which effect a user desires in the location 702 of the logical value "1" in the form image 701 shown in a preview 803.
  • JPEG Joint Photographic Experts Group
  • the image processing unit 904 uses transparent form image data at the time of printing transparent toner at the transparent toner processing unit 1204.
  • the memory device 905 registers an image showing a location for creating the effect by the transparent toner as transparent form image data.
  • the PDL processing unit 901 receives PDL data transmitted from the local PC 102, at the receiving unit 1001.
  • the image data received for being registered as the transparent form image data are not only data received from the local PC 102, but also may be based on image data obtained from an image scanned by the image scanner 201 of MFP.
  • the PDL analyzing unit 1002 analyzes the PDL data to generate intermediate data. In a case of registering a transparent form image at step S1302, step S1303 is skipped, and at step S1304, the intermediate language developing unit 1003 performs rendering to the intermediate data to generate image data.
  • the compression processing unit 1005 compresses the image data to generate compression data.
  • the transmitting unit 1006 transmits the compression data toward the decoding unit 1101 in the transparent form image processing unit 907.
  • the decoding unit 1101 decodes the received compression data.
  • the gray scale processing unit 1102 converts the decoded image data into data of the gray scale.
  • An example of the conversion method includes a case where in a case of being input in RGB, the data are converted into YUV signals, and only the Y signal is used as a gray scale signal, but is not limited thereto.
  • the binarization processing unit 1103 converts the image signal converted into the gray scale into binary image data.
  • An example of the conversion method includes a method in which a threshold value is set, and when a gray scale signal value is larger that the threshold value, the data is "1" and when the gray scale signal value is smaller that the threshold value, the data is "0", thus generating the binary image data.
  • the transmitting unit 1103 transmits the binary image data to the memory device 905.
  • the memory device 905 receives the binary image data, which is stored as the transparent form image data therein.
  • the transparent form image data stored in the memory device 905 are used to realize the printing using transparent toner.
  • the printer driver UI unit 1802 displays Fig. 8 on the screen.
  • the printer driver UI unit 1802 selects the transparent form image data to be used at printing out from many stored transparent form image data at a selection area 804.
  • the printer driver UI unit 1802 displays the preview 803 on the screen, making it possible to confirm the binarized transparent form image data.
  • the printer driver UI unit 1802 determines the print effect to a portion (location of logical value "1" in the binary image data) displayed on the preview 803.
  • the printer driver UI unit 1802 transmits to the printer driver 1803 an instruction from the button 801 in a case of producing a matte effect and an instruction from the button 802 in a case of producing a gloss effect, according to an instruction of a button 805. Finally the transmitting unit 1804 transmits the PDL data generated in the printer driver 1803. An instruction of a button 806 instructs cancellation.
  • the receiving unit 1001 in the PDL processing unit 901 receives PDL data from the local PC 102.
  • the process flow in the PDL processing unit 901 is almost the same as at the time of registering the transparent form image.
  • the PDL analyzing unit 1002 analyzes whether the PDL data require the matte effect or the gloss effect to produce the print effect information.
  • the transmitting unit 1006 transmits the print effect information to the printout condition determining unit 903.
  • the transmitting unit 1006 transmits the compressed image data to the image processing unit 904.
  • the printout condition determining unit 903 determines whether the print effect information is the matte effect or the gloss effect. In a case where the matte effect is selected, the process goes to step S1505. That is, the printout condition determining unit 903 determines to adopt a one-path print-out process as the printing method and use a coated paper as the paper type. In addition, the determination information is generated based upon this result. Then the process goes to step S1506, wherein the determination information is transmitted to the image processing unit 904. Next, in a case where the gloss effect is selected, the process goes to step S1502. That is, the printout condition determining unit 903 determines whether selection of the priority matter in advance set at MFP 101 is print quality priority or print speed priority.
  • the print speed priority is selected, first the one-path print-out process is prioritized rather than the two-path print-out process requiring more printing process time. In most cases, a coated paper requires more time for transportation as compared to a non-coated paper. Based upon these matters, in a case where the print speed is prioritized, the process goes to step S1503, wherein the printout condition determining unit 903 determines to adopt the one-path print-out process as the printing method and use the non-coated paper as the paper type. In addition, the determination information is generated based upon this result. Then the process goes to step S1506, wherein the determination information is transmitted to the image processing unit 904.
  • the two-path print-out process in which a transparent toner amount is not limited by an adhesion amount of toner as compared to the one-path print-out process.
  • an amount of the transparent toner required for producing the gloss effect may not adhere due to the toner adhesion amount limit.
  • the visual effect is reduced due to the toner adhesion amount limit. Therefore, when the two-path print-out process which is not subject to the limit by the toner adhesion amount is adopted, the reduction of the gloss effect can be avoided. Further, the coated paper can more effectively produce a glossy feeling to a portion requiring the gloss effect.
  • step S1504 the printout condition determining unit 903 determines to adopt the two-path print-out process as the printing method, use the coated paper as the paper type and reverse the transparent form image data. In addition, the determination information is generated based upon this result. Then the process goes to step S1506, wherein the determination information is transmitted to the image processing unit 904.
  • the image processing unit 904 at step S1701 decodes the image data received from the decoding unit 1201.
  • the image processing unit 904 determines whether the printing method is the one-path print-out process or the two-path print-out process from the determination information.
  • the transparent form receiving unit 1202 receives transparent form image data from the memory device 905. Further, when the binary image data in the transparent form image data are required to be reversed from the determination information, the reversing work is also performed.
  • the color processing unit 1203 converts the RGB image data into CMYBk image data to adjust the concentration by a calculating process or the like.
  • the concentration is adjusted by the calculating process or the like.
  • the transparent toner processing unit 1204 performs the one-path print-out process to a location of a logical value "1" in the transparent form image data, that is, the binary image data to determine a transparent toner amount.
  • any print-out process is performed in a location of the logical value "0" in the binary image data to generate image data including a transparent toner plate.
  • the image forming processing unit 1205 performs a gamma correction process set in MFP 101 to each plate (CMYBk and transparency) to perform an image forming process.
  • the method of the image forming process is performed by a screen or error diffusion.
  • the transmitting unit 1206 transmits the image data after the image forming process to the print control unit 906.
  • step S1702 in a case where it is determined that the printing method is the two-path print-out process, at step S1708 the color processing unit 1203 performs a color process to the image data.
  • the image forming processing unit 1205 performs the gamma correction process set in MFP to each plate (CMYBk) to perform the image forming process.
  • the transmitting unit 1206 transmits the image data after the image forming data process to the print control unit 906.
  • the print control unit 906 first prints out the image data formed with CMYBk by the determination information.
  • the paper is not discharged to the paper discharging mechanism in MFP 101, and at step S1711 MFP 101 automatically sets the paper to the paper feeding step one more.
  • MFP 101 automatically sets the paper to the paper feeding step one more.
  • the paper is again set to the paper feeding step without being reversed.
  • the paper is discharged to the paper discharging mechanism in MFP 101 and a display prompting a user to once more set the discharged print paper to the paper feeding step through the UI unit 902 may be made.
  • the transparent form receiving unit 1202 receives the transparent form image data from the memory device 905.
  • the image forming processing unit 1205 performs the gamma correction process for transparent toner set in MFP to the transparent form image data to perform the image forming process for transparent toner.
  • the transmitting unit 1206 transmits the image data after the image forming process by the transparent toner to the print control unit 906.
  • the print control unit 906 selects the paper type according to the determination information for the printing out.
  • the printing method can be automatically selected.
  • the information on whether the print quality or the print speed is prioritized is in advance set in MFP, and the process can be automatically performed based upon this information.
  • Embodiment 1 has the feature that at the printing, the information on whether the print quality or the print speed is prioritized is in advance set in MFP, and the printing method can be automatically performed based upon this information.
  • Embodiment 2 has the feature of making a user select the print quality priority or the print speed priority.
  • Fig. 19 shows an example of a screen displayed on the local PC screen.
  • step S1502 in Fig. 15 the printer driver UI unit 1802 displays Fig. 19 on the screen of the local PC 102.
  • the printer driver UI unit 1802 displays selectable priority matters and a print setting in each case on a button.
  • a button 1901 performs an instruction of the print speed priority.
  • the process goes to step S1503.
  • the printout condition determining unit 903 determines to adopt a one-path print-out process as the printing method and use a non-coated paper as the paper type.
  • the determination information is generated based upon this result.
  • step S1506 wherein the determination information is transmitted to the image processing unit 904.
  • a button 1902 performs an instruction of the print quality priority.
  • the printout condition determining unit 903 determines to adopt a two-path print-out process as the printing method, use a coated paper as the paper type and reverse transparent form image data.
  • the determination information is generated based upon this result. Then the process goes to step S1506, wherein the determination information is transmitted to the image processing unit 904.
  • Embodiment 2 in addition to Embodiment 1, a user can select the priority matter, and further, can know a detail of the set matter.
  • Embodiment 1 and Embodiment 2 the transparent toner is assumed to be printed in the same shape as the image data.
  • Embodiment 3 has the feature that for printing the transparent toner in a shape different from that of the image data, the image data and the transparent form image data (binary image data) are compared, and the determination information is produced based upon an overlap degree thereof.
  • Fig. 20 is a diagram showing a combination of the image data and the transparent form image data.
  • Fig. 21 is a diagram showing the configuration of the data processing unit 211 mounted in MFP and is configured of a transparent form overlap determining unit 2101.
  • the transparent form image data assumed at the time of printing transparent toner on image data 2001 are classified into the following three data.
  • Data 701 in conformity with the image data 2001, data 2002 which mostly overlap with the image data 2001 and data 2003 which do not overlap with the image data 2001 at all can be assumed.
  • the printer driver UI unit 1802 When the printer driver UI unit 1802 instructs the printing using the transparent form image data, the printer driver UI unit 1802 displays Fig. 8 on the local PC 102.
  • the printer driver UI unit 1802 selects the transparent form image data used at printing from many stored transparent form image data at the selection area 804. Next, an instruction is made on selection of the button 802 and the button 803, and finally according to an instruction of a button 805, the printer driver 1803 produces PDL data, which are transmitted to the transmitting unit 1804.
  • the PDL processing unit 901 processes the generated PDL data
  • the generated image data 2001 are transmitted to the transparent form overlap determining unit 2101. Further, the memory device 905 transmits the selected transparent form image data to the transparent form overlap determining unit 2101.
  • Fig. 24 is a block diagram showing the configuration of the transparent form overlap determining unit 2101. An operation flow of the transparent form overlap determining unit 2101 will be explained with reference to Fig. 22 .
  • the transparent form image data and the image data are received.
  • a count unit 2402 counts the pixel number of pixels in the logical value "1" in the transparent form image data received at the transparent form receiving unit 2403.
  • the transparent form overlap determining unit 2101 counts the pixel number having the color value of the image data decoded at the decoding unit 2401 by the count unit 2402.
  • a count comparing unit 2404 compares the pixel number of pixels of the logical value "1" counted previously with the pixel number having the color value in the decoded image data. In a case where the results of the comparison are equal, at step S2207 the count comparing unit 2404 determines that the overlap information is equal.
  • the count comparing unit 2204 compares how much pixels having the color value in the image data have at a position of the pixel in the logical value "1" in the transparent form image data at the count comparing unit 2404. In a case of almost no overlap with the image data 2001 as the transparent form image data 2003, at step S2205 the count comparing unit 2404 determines that the overlap information is "a little". In a case where many portions overlapping with the image data 2001 as the transparent form image data 2002 exist, at step S2206 the count comparing unit 2404 determines that the overlap information is "a lot”. At step S2208 the information generated in this way is transmitted to the printout condition determining unit 903 by the transmitting unit 2405.
  • the printout condition determining unit 903 determines whether the print effect information is the matte effect or the gloss effect. In a case where the gloss effect is selected, the process goes to step S1502 in the same way as Embodiment 1. In a case where the matte effect is selected, the process goes to step S2301. In addition, the printout condition determining unit 903 determines the received overlap information. In a case where the overlap information is "equal", the process goes to step S1505 in the same way as Embodiment 1.
  • the process goes to step S2302, wherein the printout condition determining unit 903 determines the print quality priority or the print speed priority.
  • the one-path print-out process is, as described above, adopted with priority rather than the two-path print-out process. In consequence, the one-path print-out process is adopted as the printing method.
  • it is preferable that a non-coated paper is used as the paper type from a viewpoint of the print speed.
  • the non-coated paper is used in a case where the overlap information is "equal" or "a lot"
  • a defective occurs in printing.
  • the transparent form is reversed for printing.
  • the transparent toner is added to a portion on the non-coated paper with no image data (or a few image data).
  • toner of CMYBk is added to the image data portion.
  • the image portion as the portion where the CMYBk toner is added creates rather a glossy feeling. That is, the image portion for desiring to obtain the effect of "matte” creates rather a glossy feeling. Such a defective occurs.
  • the coated paper is determined to be used in a case where the overlap information is "equal" or "a lot” so that in any case, the defective does not occur.
  • the determination information is generated based upon this result.
  • the two-path print-out process in which a toner adhesion amount is not limited is adopted as the printing method.
  • the coated paper in which the visual effect more remarkably appears is used ad the paper type.
  • the printout condition determining unit 903 determines the print quality priority or the print speed priority.
  • the printout condition determining unit 903 adopts the one-path print-out process as the printing method. In a case where the overlap information is "a little", since the defective as shown above does not occur, the non-coated paper of which transportation is faster than the coated paper is determined to be used as the paper type. The determination information is generated based upon this result. In a case where it is determined that the print quality priority is selected, the printout condition determining unit 903 determines to adopt the two-path print-out process as the printing method, use the coated paper as the paper type and reverse the transparent form image data. The determination information is generated based upon this result. At step S2308, the determination information is transmitted to the image processing unit 904 and the print control unit 906.
  • Embodiment 3 in addition of Embodiment 1 and Embodiment 2, it is possible to more accurately set the printout condition based upon an overlap degree between the image data and the transparent form image data. It should be noted that if the instructed effect or priority can be realized, the printing method may be selected in consideration of an adhesion amount of toner, surface properties of a paper and transparent toner, and a difference component in surface properties between the transparent toner and the toner already printed.
  • Embodiment 1 and Embodiment 3 the determination information is automatically produced based upon the effect desired by a user and the overlap degree between the image data and the transparent form image data.
  • Embodiment 4 has the feature of automatically determining a control method in a case where a finisher in which a mechanism (hereinafter, referred to as glosser) for enhancing gloss is built is mounted in MFP 101.
  • the glosser (not shown) is a device in which heat is once more added to the toner once fixed at MFP 101 to melt the surface for the re-fixing.
  • a printout document which has passed the glosser can realize high gloss. That is, even if the printing is performed at MFP 101 based upon the determination condition set in Embodiment 1 or Embodiment 3 by a user's desire to the matte effect, when the finisher built-in glosser is mounted, it is impossible to realize the matte effect.
  • the printout condition determining unit 903 adds to the determination information the printout to a paper discharging opening different from the finisher built-in glosser.
  • the image processing unit 904 and the print control unit 906 receive the determination information.
  • Embodiment 4 in addition of Embodiment 1 and Embodiment 3, even if the finisher built-in glosser is mounted in MFP, it is possible to realize the effect desired by a user.
  • Embodiment 1 and Embodiment 3 the determination information is automatically produced based upon the effect desired by a user and the overlap degree between the image data and the transparent form image data.
  • Embodiment 5 has the feature of making a user select the effect that a user can print, based upon only the overlap degree between the image data and the transparent form image data.
  • Fig. 25 shows an example of a screen displayed on the local PC screen.
  • the printer driver UI unit 1802 When the printer driver UI unit 1802 instructs the print using the transparent form image data, the printer driver UI unit 1802 displays Fig. 8 on the local PC 102. The printer driver UI unit 1802 selects transparent form image data used at printing from many stored transparent form image data at the selection area 804. Then, the printer driver UI unit 1802 displays the preview 803 on the screen of the local PC 102, thereby making it possible to confirm the binarized transparent form image data. Finally according to an instruction of the button 805, the printer driver 1803 produces PDL data, which are transmitted to the transmitting unit 1804.
  • the printout condition determining unit 903 generates the determination information only by determining the priority matter in advance set at MFP 101.
  • the generated determination information is displayed on the local PC screen in Fig. 25 , and a user can select the print effect.
  • a button 2501 instructs the printout with a matte effect, and the setting at that time also displays that the printing method is a one-path print-out process and the paper is a coated paper.
  • a button 2502 instructs the printing with a gloss effect, and also displays that the printing method is the one-path print-out process, the paper is the coated paper and the transparent form image data are reversed.
  • the image processing unit 904 and the print control unit 906 receive the determination information.
  • Embodiment 5 since the effect accomplished by printing is displayed, the print effect can be simply realized only by a user's selection without paying attention to the print effect particularly.
  • Embodiment 1 and Embodiment 3 the determination information is automatically produced based upon the effect desired by a user and the overlap degree between the image data and the transparent form image data.
  • Embodiment 6 has the feature of displaying to a user a measurement method when the limit to the paper type occurs.
  • a printing operation is started based upon the determination information automatically produced from the effect desired by a user and the overlap degree between the image data and the transparent form image data, but although the paper type of the determination information is the coated paper, the coated paper may not be mounted.
  • the printer driver UI unit 1802 displays a screen of informing a user of mounting the coated paper on the screen of the local PC 102.
  • the printer driver UI unit 1802 displays a screen of providing a user with a warning that the mounted paper type is used as an alternative but the print effect may not live up to the user's expectations, on the screen of the local PC 102 (not shown).
  • the printout condition determining unit 903 determines whether or not a desired (given) print effect can be produced with the paper type. In a case where the desired print effect can not be produced, the printer driver UI unit 1802 displays a warning screen that the print effect may not live up to the expectations, on the screen of the local PC 102 (not shown).
  • Embodiment 6 it is possible to prompt a user to perform a measurement in a case where the paper type with which the desired effect can be obtained is not mounted.
  • Embodiment 1 and Embodiment 3 the determination information is automatically produced based upon the effect desired by a user and the overlap degree between the image data and the transparent form image data.
  • Embodiment 7 has the feature of automatically producing the determination information in a case where transparent toner is used to a printout document already printed to realize the print effect. In this case, a transparent image having a configuration corresponding to that of the printout document already printed is added to the printout document.
  • Fig. 26 and Fig. 27 are diagrams each showing an example displayed on the screen of the UI unit 902 in MFP 101.
  • Fig. 28 is a diagram showing the configuration of the data processing device 211 mounted in MFP 101 and is configured of a scan image processing unit 2801.
  • MFP 103 performs printing with four colors of CMYBk. At that time, MFP 103 performs a gray scale process and binarization to the generated image data, which are stored in the memory device built in MFP 103.
  • the paper feeding step in MFP 101 sets the printout document discharged from the MFP 103.
  • the UI unit 902 in MFP 101 displays a screen of Fig. 26 on a control panel (not shown) in MFP 101.
  • the UI unit 902 displays a list of MFP connected to LAN 104 in the same as MFP 101 to select MFP 103 which has performed the printing with four colors of CMYBk from a selection area 2601.
  • the UI unit 902 selects MFP 103, at the selection area 2602 there is selected an image corresponding to the printout document set to the paper feeding step from the binarized images stored in the memory device built in MFP 103.
  • the UNI unit 902 determines selection of form images and selection of print effects at MFP 101.
  • An instruction of a button 2605 means cancellation.
  • the transparent form overlap determining unit 2101 receives the binarized image data from MFP 103 when the selection of the transparent form image data and the selection of the print effects at MFP 101 by the UI unit 902 are completed and the printing operation is started.
  • the transparent form overlap determining unit 2101 makes the determination using the binarized image data and the selected transparent form image data.
  • the UI unit 902 does not display MFP 105 on the selection area 2601. According to an instruction of a button 2403, the UI unit 902 displays Fig. 27 on the control panel of the MFP 101.
  • An original reading device of MFP 101 sets the printout document printed in four colors and reads the printout document printed in four colors according to an instruction of a button 2701, which is obtained as image data.
  • the scan image processing unit 2801 performs an image process for scan (color process, base removing or the like) to the obtained image data, which are transmitted to the transparent form overlap determining unit 2101.
  • An instruction of a button 2702 means cancellation of the reading-in operation.
  • the UI unit 902 in MFP 101 selects the transparent form image data from the selection area 804 on the screen of Fig. 8 displayed on the control panel by the UI unit 902, selects the print effect from the button 801 and the button 802 and starts with a printing operation according to the instruction of the button 805.
  • the overlap form determining unit 2101 determines the overlap degree between the image data and the transparent form image data.
  • the printout condition determining unit 903 After determining the overlap degree, even if the printing by four colors of CMYBk is performed by either one of MFP 103 and MFP 105, the printout condition determining unit 903 generates the determination information. As candidates in this case, since Embodiment 7 performs the printing by the two-path print-out process, only step S1504, step S2304, and step S2307 can be selected.
  • the transparent form receiving unit 1202 receives the selected transparent form image data from the memory device 905. Further, in a case where the binary image data in the transparent form image data are required to be reversed from the determination information, the reverse work is also carried out.
  • the image forming processing unit 1205 performs an image forming process to the transparent form image data.
  • the transmitting unit 1206 transmits the image data to the print control unit 906.
  • Embodiment 7 in addition to Embodiment 1 and Embodiment 3, it is possible to realize the print effect to the printout document already printed.
  • the output by PDL is described, but the present invention is not limited thereto.
  • the same can be applied to the output by scan.
  • an operation similar to that of PDL is performed.
  • the screen displayed on the screen of the local PC 102 is displayed on the screen of the control panel in MFP 101.
  • the scope of the aforementioned embodiment also includes a processing method in which a program for operating the configuration of the above embodiment so as to realize the function of the above embodiment is stored in a recording medium and the program stored in the recording medium is read out as a code, which is performed by a computer.
  • aspects of the present invention can also be realized by a computer of a system or apparatus (or devices such as a CPU or MPU) that reads out and executes a program recorded on a memory device to perform the functions of the above-described embodiment(s), and by a method, the steps of which are performed by a computer of a system or apparatus by, for example, reading out and executing a program recorded on a memory device to perform the functions of the above-described embodiment(s).
  • the program is provided to the computer for example via a network or from a recording medium of various types serving as the memory device (e.g., computer-readable medium).
  • the recording medium is a computer readable recording medium.
  • the recording medium in which the above program is stored but also the program itself can be included in the aforementioned embodiment.
  • An example of such a recording medium may include a floppy (registered trademark) disc, a hard disc, an optical disc, an optical magnetic disc, CD-ROM, a magnetic tape, an involatile memory card and ROM.
  • the embodiment includes not only the device of performing the process with the program unit stored in the aforementioned recording medium, but also a device which operates in operational sequence in cooperation with the other software and a function of an expansion board to perform the operation of the aforementioned embodiment.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (AREA)
  • Color Electrophotography (AREA)
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EP09819000.2A 2008-10-08 2009-10-08 Image forming device Not-in-force EP2344929B1 (en)

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KR20100095452A (ko) 2010-08-30
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US8531724B2 (en) 2013-09-10
CN101910955A (zh) 2010-12-08
US20110043840A1 (en) 2011-02-24
EP2344929A4 (en) 2013-05-29
US8786905B2 (en) 2014-07-22
KR101123730B1 (ko) 2012-03-16
JP4950977B2 (ja) 2012-06-13
EP2344929A1 (en) 2011-07-20
WO2010041460A1 (en) 2010-04-15

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